Pipe-bending mechanism



u. s. MORRIS. PIPE BENDING MECHANISM. APPLICATION FILED NOV. l2, L9H.RENEWED NOV. 12, 19 19- 1,342,564.

Patented J une 8, 1920.

3 SHEETS-SHEET 1..

'Zj/zan Ska/e2" Morris ATTORNEY U. S. MORRIS.

v PIPE BENDING MECHANISM. APPLICATION FILED NOV. 12, 1.917. RENEWED NOV.12,1919.

I Mban' Size/er Morris W E ATTORNEY U. S. MORRIS.

PIPE BENDING MECHANISM.

APPLICATION FILED NOY. 1.2, 1917. RENEWED Nov. 12, 1919.

Patented June 8, 1920.

a SHEETS-SHEET zit //////////7//// A ZZIMM v gwuentoz Mia: Slgkrflbrnrearner URBAN SEALER MORRIS, or TULSA, OKLAHOMA.

PIPE-BENDINGV MECHANISM.

Specificationof Letters Patent.

Patented J l ne 8, 1920.

Application filed November 12 1917, SerialNo. 201,636. Renewed. November12, 1919. Serial No. 337,630.

To all whom it may concern:

' at Tulsa, in the county of Tulsa and State of Oklahoma, have inventedcertain new 7 proved mechanism applied to the pipe of a and usefulImprovements in Pipe-Bending Mechanism, of which the following is afull, clear, and exact description, such as will enable others skilledin the art to which it appertains to make and use the same.

The invention relates to pipe bending mechanismv and seeks to provide asimple and effective mechanism which can be mounted directly onthe'pipeof a pipe line while the pipe is in the process of being laid, anddriven by the pipe laying machine, so that the pipe can be bent andfitted to the usual uneven groundin which it is laid and changes in thedirection of the pipe line can be made at a very small expense.

r In laying pipe lines for the transportation of oil, and for otherpurposes it is necessary, in order to avoid the needless expense ofcutting through hills and raising the pipe above valleys, to bend thepipe to conform to the often descending and ascending surface of theground in which the pipe is laid.

. The direction of the pipe line often changes which requires bendingthepipe to conform to the direction of the line, The bending of'the pipein laying pipe lines is very expensive owing to the fact that in theusual way it requires. considerable time and during this time of bendingthe pipe, the

laying of the pipe is suspended, necessitating the idlenessof a force ofmenand thepipe laying machine, this idleness decreasingthe capacity ofthe laying forces and machine and correspondingly increasing the cost oflaying the pipe line. It is. essential thata more expeditious method .ofbending the pipe be provided so that the expense will be greatlyreduced.

The present i improved simple, and eflicient mechanism that can bequickly and easily applied to the pipe, together with connections to thepipe laying machine, so that the pipe can be expeditiously bent to the,required shapeby power supplied from the power driven pipe I layingmachine.

With these and other objects in view the invention consistsin thefeatures of construction combinations and arrangements of parts inaf esetf th an morep ti ular y nvention seeks to provide an pointed out inthe appended claim, the ac -mentary view, the application being for avertical bend of the pipe.

Fig. 2, is a plan view of the mechanism applied to a pipe, theconnection to the pipe laying machine beingbroken away, and theapplication being for a'horizontalbend of the pipe.

Fig. 3, is a view in elevation of the pipe bending mechanism applied toa pipe fora horizontal bend of the pipe.

Fig. 4c is an enlarged sectional view of thebending jack forming part-ofthe mechanism and taken on line 3'3 of Fig. 3. Fig. 5 is an enlargedView of the cable rest block fitting'between the jack and the cable.

Fig. 6 is an enlarged view ofthe r'estsa'ddle fitting between'the jackand the pipe. Fig. 7 is an enlarged view of thepipeand cable connectingmechanism. 1

Fig. 8. is an enlarged view of the pipe and cable, connecting mechanismviewed at an angle of ninety degrees from the view Fig. 7.

Fig. 9'is an enlarged view ofthe pipe and cable connecting mechanismtaken from the opposite directionof the view Fig. 8;

g, Fig. 10 is .a'fragmentary enlarged view' of. the pipiegand cableconnecting mechanism with certain positions shown in dotted lines toillustrate the toggle grip of the connectingmechanism upon the pipe.

The pipe 11, pipe laying machine 12, en-f {gine 13, gear 14 and rolls 15are of common and well knownconstruction, it being understood that thepipe forms atrack upon which the pipe laying machine travels, and

that the machine screws each successive traversing bearings of themachine on the pipe and pipe line, the machine being shown 1 only infragmentary View to show the connection and operation ;of thepipe'bending mechanism. j

Spaced at a; suitable distancejupon the j when the latter has reachedthis position pipe 11 and in reverse positions are dupli- I to prevent.slippageof the gripping the nut is'sufliciently tight, the nut not catesets of cable connecting mechanism; each as illustrated comprising thelower gripping member 16 to which 1s pivoted by the pins 18 and 19respectively'the adjusting" bolt 17 and the link bars 21. The uppergripping member 22 is provided with the jaws 23 for cable connection,thejaws 24 to.

form a rest25 for thenut 20, and the lug shaped boss 26 to which thetoggle link 27 is pivotedaby the pin 28, the opposite end of the link 27being pivoted to the link bars 21 by the pin 29.

From the'upper gripping member'22 the projection 30 extends in anopposite direction from the jaws 23 and is provided with the insertedsteel toothed gripping plate 31.

' mechanism upon the pipe.

It is understood that the gripping mechanism is constructed in sizes toconform to the pipe but that suflicient adjustment can be made by thenut 20 to accommodate two or'more sizes of pipe.

The toggle link 27 is slotted at the upper end 32 thereof and the pin 29is fixed in the link bars 21 sothat by swinging the bolt 17 from betweenthe jaws 24 the gripping mem bers 16 and 22 are easily separated, andthese members are usually placedonthe pipe 11 separately, connecting thepin 29 by a swinging motion of the member 22, after which the bolt 17 isplaced as shown in F 7. and the nut 20 adjusted while the toggle link 27and link bars 21 are in the outwardly leaning connectedpos'ition shownin dotted lines 32 iof Fig. 10, .the gripping of the mechanism beingaccomplished by throwing the toggle linkto the position of dotted lines33. of Fig. 10,'it being obvious that that'the pin 29 has passed theposition where the pins 29,28 and 19 are in alinement and that themembers 16 and 22 are locked in a tight grip uponthe pipe 11. The togglelink can be operated in any ordinary manner, but

:the hole 34 is provided thereinfor the insertion'of any ordinary'toolwhich may be at hand as the common and well known pinch or crow bar. r 7

It will'be understood that thetoggle link 'c'anibe' thrown to and fro asthe nut 20 is adjusted by hand and the operator will know by the forcerequired to throw the link to the position of dotted lines 33, when 7:being intended to be tightened while the toggle link is undertensionfrom the grip upon the pipes.

The bending jack as illustrated comprises the outer-casing'35in' whichis'mounted so as to slide; freely, the plunger 36, the latter beinginternally threaded to receive the screw 37, and the screw havingmounted rigidly thereon the beveled gear 38 and pro- 1 without,departure from the invention. 1

vided with the bearing 39 and thethrust bearing 40. The shaft 41 isjournaled in the outer casing 35 and has rigidly mounted thereon thebeveled pinion 42 meshing with the gear 38-, the thrust bearing 42 beingprovided to prevent the pinion from backing out ofmesh with the gear'andto reduce the friction caused by the natural tendency of beveled gearsto spread -apartwvhile in operation. The casing 35 isprovided with thecavity 43, and the plunger with the cavity 44, these cavities beingduplicate and for the purpose of receiving the pipe rest saddle 45 andthe cable rest block 46, it bemechanism.

It will be understood from theforegoing thatIOWillg tothe positions ofthe gripping mechanism and the bending jack, and the angle of, the cable47 that when the shaft 41 is rotated in the direction that will forcethe plunger 36 outwardly vfrom the casing 35 that the pipe 11 will bendin the direction from the-jack as indicated by thedotted be rotated inany usual manner, it being preferred however to drive the shaft from thepipe l2ty1ngl11a0l11116111.01Cl6f to expedit'e the work.

NVhenIthebending jack exerts force upon 7 the cablethe tendencyis topull the gripp ng mechanism toward the jack, but owing to the cableconnectingto the" mechanism on the sidethereof containing-the toothedplates31, any movement of themechanism causes the members 22 to leantoward each 7 other and thrust the teeth of the tooth plate into thepipe thus preventing further slippage of the mechanism.

To the shaft 41 is connected by the iconpling 49 the'lshaft 50, thelattenconnecting' tothe common universal joint .51 to which in turnconnects the square slip shaft 52, the squareshaft fitting loosely inthe internally squared socket 53 of the hollow, shaft 54.

The shaft 54 connects'tol the common uni versaljoint 55. to which. isconnectedthe shaft 56, thelatter in turn connecting to the'gear wheel 14driven from theengine 13 of the pipe laying machine '12, it beingunderstood that the connections from the bendingjack to.the geargaresuitable for driving the bending mechanism froin'the particulartype ofpipe laying machine 1111s: trate'd and'that'changes can be made thereinlines 48 of Fig. '1, and that this shaft can J In Fig. 1 the pipebending mechanism is applied to the pipe with the bending jackprojecting upward for a downward bend,

tion from the pipe and that the pipe can be bent upward, downward,horizontally and at any intervening angle.

It will be understood that the bending mechanism can be applied and thepipe bent in the desired direction and to the desired degree and themechanism removed in a very short space of time, and that a great savingis efiected in the laying of an ordinary pipe line. I

It is obvious that numerous changes may be made in'the details assetforth without departure from the invention.

What I claim as new, and desire to secure by Letters Patent, is v Inpipe bending mechanism, a'pipe con-. necting member comprising a splitcollar arranged to encircle a pipe,ran adjustabledisconnectable hingebolt connecting one side of said collar, link connections connecting theopposite side of said collar and arranged to grip the two halves of saidcollar tight upon the pipe, a cable connecting lug on. one half ofsaidcollar, and a toothed member rigid with said cable .lug and the."corresponding halfof said collar'and arranged with the teeththereoffacing the axis of said collar to'prevent slippage of said collaron a pipe.

URBAN SEALER MORRIS.

